API RP 5L9-2001 External Fusion Bonded Epoxy Coating of Line Pipe (First Edition)《线管的外部聚变环形氧化树脂涂料.第1版》.pdf

1、External Fusion Bonded Epoxy Coating of Line PipeAPI RECOMMENDED PRACTICE 5L9FIRST EDITION, DECEMBER 2001REAFFIRMED, MAY 2015External Fusion Bonded Epoxy Coating of Line PipeUpstream SegmentAPI RECOMMENDED PRACTICE 5L9FIRST EDITION, DECEMBER 2001REAFFIRMED, MAY 2015SPECIAL NOTESAPI publications nece

2、ssarily address problems of a general nature. With respect to partic-ular circumstances, local, state, and federal laws and regulations should be reviewed.API is not undertaking to meet the duties of employers, manufacturers, or suppliers towarn and properly train and equip their employees, and othe

3、rs exposed, concerning healthand safety risks and precautions, nor undertaking their obligations under local, state, or fed-eral laws.Information concerning safety and health risks and proper precautions with respect to par-ticular materials and conditions should be obtained from the employer, the m

4、anufacturer orsupplier of that material, or the material safety data sheet.Nothing contained in any API publication is to be construed as granting any right, byimplication or otherwise, for the manufacture, sale, or use of any method, apparatus, or prod-uct covered by letters patent. Neither should

5、anything contained in the publication be con-strued as insuring anyone against liability for infringement of letters patent.Generally, API standards are reviewed and revised, reafrmed, or withdrawn at least everyve years. Sometimes a one-time extension of up to two years will be added to this review

6、cycle. This publication will no longer be in effect ve years after its publication date as anoperative API standard or, where an extension has been granted, upon republication. Statusof the publication can be ascertained from the standardization manager telephone (202)682-8000. A catalog of API publ

7、ications and materials is published annually and updatedquarterly by API, 1220 L Street, N.W., Washington, D.C. 20005.This document was produced under API standardization procedures that ensure appropri-ate notication and participation in the developmental process and is designated as an APIstandard

8、. Questions concerning the interpretation of the content of this standard or com-ments and questions concerning the procedures under which this standard was developedshould be directed in writing to the standardization manager, American Petroleum Institute,1220 L Street, N.W., Washington, D.C. 20005

9、. Requests for permission to reproduce ortranslate all or any part of the material published herein should also be addressed to the gen-eral manager.API standards are published to facilitate the broad availability of proven, sound engineer-ing and operating practices. These standards are not intende

10、d to obviate the need for apply-ing sound engineering judgment regarding when and where these standards should beutilized. The formulation and publication of API standards is not intended in any way toinhibit anyone from using any other practices.Any manufacturer marking equipment or materials in co

11、nformance with the markingrequirements of an API standard is solely responsible for complying with all the applicablerequirements of that standard. API does not represent, warrant, or guarantee that such prod-ucts do in fact conform to the applicable API standard.All rights reserved. No part of this

12、 work may be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, N.W., Washington, D.C. 20005.Copyrigh

13、t 2001 American Petroleum InstituteFOREWORDAPI publications may be used by anyone desiring to do so. Every effort has been made bythe Institute to assure the accuracy and reliability of the data contained in them; however, theInstitute makes no representation, warranty, or guarantee in connection wi

14、th this publicationand hereby expressly disclaims any liability or responsibility for loss or damage resultingfrom its use or for the violation of any federal, state, or municipal regulation with which thispublication may conict.Suggested revisions are invited and should be submitted to the standard

15、ization manager,American Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005.vCONTENTSPage1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Description . . . . . . . . . . . . . . . . . . . . . . .

16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Denitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.3 Referenced Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17、 . . . 11.4 Retention of Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 COATING MATERIAL REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18、 . . . . . . . . . . . . . . . . . . . . . . . . . . 12.2 Coating Materials Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.3 Traceability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4 C

19、oating Supplier Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.5 Certication of Physical Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 COATING MATERIAL QUALIFICATION. . . . . . . . . . . . . . . . . . . . . . . .

20、 . . . . . . . . . 23.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.2 Preparation of Laboratory Coated Test Specimens. . . . . . . . . . . . . . . . . . . . . . . . 23.3 Epoxy Material Mechanical Properties and Tests.

21、 . . . . . . . . . . . . . . . . . . . . . . . . 34 APPLICATOR PRACTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.1 Plant Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.2 Receip

22、t of Pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.3 Handling of Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.4 Coating of Material Selection . . . . . . . . . . . . . . .

23、. . . . . . . . . . . . . . . . . . . . . . . . . 34.5 Handling of Coating Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.6 Designated Quality Control Responsibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.7 Inspector Notication . . .

24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 APPLICATION PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.1 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25、 . . . . . . . . . . . . 45.2 Surface Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45.3 Coating Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 PRODUCTION INSPECTION AND DOCU

26、MENTATION . . . . . . . . . . . . . . . . . . . . 56.1 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56.2 Working Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27、. 66.3 Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66.4 Thickness Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66.5 Holiday Inspection. . . . . . . . . . . . . . . .

28、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66.6 Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 REPAIR OF COATING DEFECTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67.1

29、 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67.2 Preparation of Repair Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67.3 Pinholes and Small Area Repairs . . . . . . . . . . .

30、. . . . . . . . . . . . . . . . . . . . . . . . . . 67.4 Large Area Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 PRODUCTION ACCEPTANCE TESTING AND DOCUMENTATION. . . . . . . . . . 78.1 Testing Frequency . . . . . . . . . . . . . . . . . .

31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78.2 Production Test Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7viiPage8.3 Flexibility Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32、. . . . . . . 78.4 Cathodic Disbondment Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78.5 Hot Water Soak Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78.6 Microscopic Examination . . . . . . . . . . . .

33、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78.7 Retest of Type A or Type B Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78.8 Stripping and Recoating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 COATIN

34、G STENCIL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79.1 Location of Coating Stencils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79.2 Information Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35、. . . . . . . . . . . . . . 89.3 Restenciling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 810 HANDLING, STORAGE AND SHIPPING OF COATED PIPE. . . . . . . . . . . . . . . . . 810.1 Handling. . . . . . . . . . . . . . . . . . . . . . . . .

36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 810.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 810.3 Shipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37、. . . . . . . . . . . . 9APPENDIX A SPECIFIC GRAVITY DETERMINATION . . . . . . . . . . . . . . . . . . . . . . 11APPENDIX B GET TIME DETERMINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13APPENDIX C GLASS TRANSITION AND HEAT OF REACTION DETERMINATION FOR COATING MATERIALS (POW

38、DERS). . . 15APPENDIX D MOISTURE ANALYSIS DETERMINATION . . . . . . . . . . . . . . . . . . . 17APPENDIX E PERCENT TOTAL VOLATILE ANALYSIS BY MASS. . . . . . . . . . . 19APPENDIX F ABRASION TEST METHOD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21APPENDIX G 24-HOUR CATHODIC DIS

39、BONDMENT TEST . . . . . . . . . . . . . . . . . 23APPENDIX H CHEMICAL RESISTANCE TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27APPENDIX I FLEXIBILITY TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29APPENDIX J IMPACT TESTING . . . . . . . . . .

40、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31APPENDIX K MICROSCOPIC EXAMINATION FOR POROSITY AND VISIBLE INTERFACIAL CONTAMINATION UNDER FUSION-BONDED EPOXY PIPELINE COATINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33APPENDIX L HOT WATER SOAK TEST . . . . . .

41、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Figures1 DSC Scan on Coating Material with Conditioning Run . . . . . . . . . . . . . . . . . . . . 162 DSC Scan on Coating Material with No Conditioning Run . . . . . . . . . . . . . . . . . 163 Cathodic Disbondment Test Set Up for Pipe Rin

42、g Samples . . . . . . . . . . . . . . . . . 244 Schematic of Apparatus for Cathodic Disbondment Test . . . . . . . . . . . . . . . . . . . 255 Effective Strap Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Four Point Bend. . . . . . . . . . . .

43、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Examples of Cross-section Porosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 Examples of Interface Porosity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44、 . . 339 Interfacial Contamination Comparison Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Tables1 Referenced Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Coating Material Physical Properties . . . . . . . . . . . . .

45、 . . . . . . . . . . . . . . . . . . . . . . . 23 Performance of Laboratory Coated Steel Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Performance of Coating Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Production Test Ring Requirements .

46、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8viii1External Fusion Bounded Epoxy Coating of Line Pipe1 Scope1.1 DESCRIPTIONThis recommended practice provides external fusionbonded epoxy coating of line pipe for use in transportationpipelines. The Recommended Practice is l

47、imited to the appli-cation of external coatings on pipe prior to installation. Theremay exist differences in the surface condition of pipes pro-duced by the various pipe making processes permitted underthe latest editions of API standards. Surface conditions maypreclude the coating of such pipe.The

48、applicator shall be responsible for assuring compli-ance with all of the provisions of this practice however, thePurchaser may make any investigation necessary to satisfyhimself of compliance by the applicator.1.2 DEFINITIONS1.2.1 applicator:The organization responsible to thePurchaser for the appli

49、cation of the coating.1.2.2 batch: The quantity of material produced during acontinuous production run of not more than one calendar day.1.2.3 coating: The lm of coating as applied to the sub-strate.1.2.4 coating material: The material prior to applicationto the substrate.1.2.5 holiday:A discontinuity in a protective coatingwhich exhibits electrical conductivity when exposed to a spe-cic voltage.1.2.6 inspector: An authorized agent of the purchaser.1.2.7 may:May indicates that a provision is optional.1.2.8 purchaser:The owner company or the authorizedagency that buys the applie